now notice a big rig turning right against the red arrow. watch the car at the bottom of the screen, also runs the red arrow. now watch the silver suv followed closely by a white car and those also run the no turn on red signal. i'm at the intersection of oak and octavia in san francisco where a fatal accident occurred. this intersection has red light cameras in two directions but not for right turns so drivers exploit that fact. for such a busy intersection i was surprised by the amount of distracked drivers. while this road doesn't seem to be designed for big rig are lots of trucks passing through, sometimes at break neck speeds. something else i noticed. when the light turns green drivers often just sit there causing loud horn blowing often because the driver is in the wrong lane so they block traffic whether at the light or a few car lengths behind. then there is this driver who turns from the no turn lane. it seems like with all the traffic engineering in the world nothing can help plain old bad driving. in san francisco, stanley robert